Description
Rat Calcitonin (Calca) ELISA Kit
The Rat Calcitonin (CALCA) ELISA Kit is specifically designed to accurately measure the levels of calcitonin in rat serum, plasma, and cell culture supernatants. This high-quality kit offers exceptional sensitivity and specificity, ensuring precise and consistent results for a variety of research purposes.Calcitonin is a critical hormone that regulates calcium levels in the body and plays a key role in bone metabolism. Elevated levels of calcitonin are associated with conditions such as hypercalcemia and thyroid disorders, making it a valuable biomarker for studying these diseases and potential treatment strategies.
With easy-to-follow instructions and rapid assay times, the Rat Calcitonin (CALCA) ELISA Kit is the perfect tool for researchers seeking to investigate the role of calcitonin in physiological processes and disease states in rat models.
| Product Name: | Rat Calcitonin (Calca) ELISA Kit |
| Product Code: | RTEB0762 |
| Alias: | Rattus norvegicus, CGRP, Calcitonin gene-related peptide 1, Alpha-type CGRP, Calcitonin gene-related peptide I, CGRP-I, Calca, Calc |
| Uniprot: | P01256 |
| Reactivity: | Rat |
| Range: | 15.6-1000 pg/mL |
| Detection Method: | Sandwich |
| Size: | 96 Assay |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | CALCA iso3: Calcitonin causes a rapid but short-lived drop in the level of calcium and phosphate in blood by promoting the incorporation of those ions in the bones. Belongs to the calcitonin family. 3 isoforms of the human protein are produced by alternative splicing. |
| UniProt Protein Details: | Protein type:Secreted; Secreted, signal peptide Cellular Component: axon; cell soma; cytoplasm; cytosol; extracellular region; extracellular space; intracellular; neuron projection; nucleus; terminal button Molecular Function:calcitonin receptor binding; hormone activity; identical protein binding; neuropeptide hormone activity; protein complex binding; receptor binding Biological Process: activation of protein kinase activity; adenylate cyclase activation; aging; antibacterial humoral response; antifungal humoral response; cellular calcium ion homeostasis; cytosolic calcium ion homeostasis; defense response to Gram-negative bacterium; defense response to Gram-positive bacterium; detection of temperature stimulus involved in sensory perception of pain; elevation of cytosolic calcium ion concentration; elevation of cytosolic calcium ion concentration during G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); embryo implantation; endothelial cell migration; endothelial cell proliferation; feeding behavior; G-protein coupled receptor internalization; G-protein signaling, adenylate cyclase activating pathway; inflammatory response; innate immune response; leukocyte adhesion; monocyte chemotaxis; negative regulation of blood pressure; negative regulation of bone resorption; negative regulation of neurological process; negative regulation of ossification; negative regulation of osteoclast differentiation; negative regulation of smooth muscle contraction; negative regulation of transcription, DNA-dependent; neuromuscular junction development; neuropeptide signaling pathway; positive regulation of adenylate cyclase activity; positive regulation of cAMP biosynthetic process; positive regulation of cell adhesion; positive regulation of interleukin-1 alpha production; positive regulation of interleukin-8 production; positive regulation of macrophage differentiation; positive regulation of ossification; positive regulation of vasodilation; protein amino acid phosphorylation; receptor internalization; regulation of blood pressure; regulation of heart contraction; regulation of heart rate; regulation of systemic arterial blood pressure by neurological process; response to heat; response to pain; response to yeast; vasculature development; vasodilation; vasodilation of artery during baroreceptor response to increased systemic arterial blood pressure |
| NCBI Summary: | an inhibitor of lactotroph function and a potent vasodilator [RGD, Feb 2006] |
| UniProt Code: | P01256 |
| NCBI GenInfo Identifier: | 115485 |
| NCBI Gene ID: | 24241 |
| NCBI Accession: | P01256.1 |
| UniProt Related Accession: | P01257,P01256 |
| Molecular Weight: | |
| NCBI Full Name: | Calcitonin gene-related peptide 1 |
| NCBI Synonym Full Names: | calcitonin-related polypeptide alpha |
| NCBI Official Symbol: | Calca  |
| NCBI Official Synonym Symbols: | CAL6; CGRP; Cal1; Calc; RATCAL6; calcitonin  |
| NCBI Protein Information: | calcitonin gene-related peptide 1 |
| UniProt Protein Name: | Calcitonin gene-related peptide 1 |
| UniProt Synonym Protein Names: | Alpha-type CGRP; Calcitonin gene-related peptide I; CGRP-I |
| UniProt Gene Name: | Calca  |
| UniProt Entry Name: | CALCA_RAT |
| Component | Quantity (96 Assays) | Storage |
| ELISA Microplate (Dismountable) | 8×12 strips | -20°C |
| Lyophilized Standard | 2 | -20°C |
| Sample Diluent | 20ml | -20°C |
| Assay Diluent A | 10mL | -20°C |
| Assay Diluent B | 10mL | -20°C |
| Detection Reagent A | 120µL | -20°C |
| Detection Reagent B | 120µL | -20°C |
| Wash Buffer | 30mL | 4°C |
| Substrate | 10mL | 4°C |
| Stop Solution | 10mL | 4°C |
| Plate Sealer | 5 | - |
Other materials and equipment required:
- Microplate reader with 450 nm wavelength filter
- Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
- Incubator
- Deionized or distilled water
- Absorbent paper
- Buffer resevoir
*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.
| Step | |
| 1. | Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C. |
| 2. | Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform. |
| 3. | Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper. |
| 4. | Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C. |
| 5. | Repeat the wash process for five times as conducted in step 3. |
| 6. | Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction. |
| 7. | Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing. |
| 8. | Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters. |
| 9. | After experiment, store all reagents according to the specified storage temperature respectively until their expiry. |
When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.
| Sample Type | Protocol |
| Serum | If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. |
| Plasma | Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit. |
| Urine & Cerebrospinal Fluid | Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid. |
| Cell culture supernatant | Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately. |
| Cell lysates | Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Tissue homogenates | The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C. |
| Tissue lysates | Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Breast Milk | Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles. |
